Automatic bag inserter for boxes and crates
Optimize your packaging line with a compact solution that seamlessly inserts polyethylene bags into various container types, ensuring continuous operation with minimized material waste and enhanced hygiene.

Inserts and Opens Bags Automatically
The ZIM-31 Poly Bag Inserter from Pattyn Packaging Lines is an automatic bagging machine designed to enhance efficiency and hygiene for industrial packaging applications. Its unique feature is a patented smart film opening technology combined with a vacuum and air insertion system, ensuring reliable bag opening. The ZIM-31 handles various container types, including cardboard boxes, plastic crates, and trays, making it highly versatile for industries such as food, logistics, and manufacturing. It supports a throughput of up to 14 cases per minute and features a continuous operation capability thanks to an automatic film roll exchange. Equipped with a user-friendly 15” HMI and ergonomic design, this machine guarantees minimal downtime with its quick-loading film system and compact footprint. Additionally, it integrates seamlessly into automated production lines when combined with Pattyn’s case erector, weigh filler, and palletizer, delivering a cohesive packaging solution.
Benefits
- Ensures operational efficiency with automatic film roll exchange, minimizing interruptions.
- Saves packaging costs by using polyethylene bags from a reel.
- Facilitates user operation with an intuitive 15” HMI interface.
- Adapts to varying container sizes and types, accommodating diverse packaging needs.
- Protects product integrity with failsafe bag opening and hygienic insertion methods.
- Applications
- Trays,Cardboard boxes,Plastic crates
- End products
- Pharmaceutical supplies,Detergents,Bulk nuts,Fresh produce,Industrial components,Confectionery items,Dry goods,Frozen poultry,Bakery products,Electronics,Dairy products
- Steps before
- Case Erecting,Weighing and Filling
- Steps after
- Bag Closing,Case Closing,Palletizing
- Input ingredients
- polyethylene film,boxes,crates,trays
- Output ingredients
- PE bags,bagged boxes,bagged crates,bagged trays
- Market info
- Pattyn is known for its expertise in designing and manufacturing industrial packaging solutions, specializing in ETO equipment for bulk packaging automation, with a strong reputation for innovation, quality, and customer-focused service in the industry.
- Automation
- Fully automated
- Speed
- Up to 14 cases/min
- Footprint
- 1.7 x 1.3 m
- Film type
- Polyethylene film
- Bag type
- Made-to-measure / Pre-made bags
- Control interface
- 15” HMI
- Box size range
- Min. L.300 x W.200 // D.250,Max. L.610 x W.410 // D.650
- HMI size
- 15 inches
- Output
- 8 c/min standard,14 c/min with fast machine option
- Film roll weight
- 12 kg
- Technology
- Patented smart film opening technology
- Gripper module
- Strong gripper,spoon module
- Warning indicator
- Multicolour warning light
- Automation level
- Automatic
- Bag insertion speed
- Up to 14 cases/minute
- Film roll exchange
- Automatic
- HMI Control
- 15” HMI
- Footprint
- 1.7 x 1.3 m
- Failsafe bag opening
- Yes,with strong gripper,spoon module
- Smart film opening technology
- Patented with vacuum,air insertion
- Loading method
- Quick and ergonomic film roll loading
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Container type
- Cardboard box / Plastic crate / Tray
- Machine footprint
- 1.7 x 1.3 m
- Control panel type
- 15” HMI
- Compact footprint
- Super compact
- Container dimensions
- Min L.300 x W.200 x D.250 mm
- Max L.610 x W.410 x D.650 mm
- Compact footprint
- 1.7 x 1.3m
- Control panel type
- 15” HMI
- Integration possibilities
- Infeed conveyor with separator
- Automation level
- Automatic film roll exchange